Ball-bearing swing hanger



F ch.

l- C. STROTH BALL BEARING SWING HANGER Filed Oct. 12,- 1949 I INVENTORBY 1 I, I

ATTORNEYS Patented Feb. 5, 1952 UNITED STATS BALL-BEARING SWING HANGERIrvine O. Stroth, Wellston, Ohio Application October 12, 1949, SerialNo. 121,029

1 Claim.

This invention relates to swing construction, and more particularly tothe construction of the hangers of the swing by means of which thecables of a swing are attached to the horizontal bar of the swingsupporting frame.

An important object of the invention is to provide a hanger of the ballbearing type which will not only provide an exceptionally frictionlessand easy running bearing, but one which will constitute an exceptionallystrong and durable attaching means between the cables of a swing and thehangers or supports.

A still further object of the invention is to provide a ball bearingcable hanger which will reduce wear between the cables of swings and theconnecting means connecting the cables to their frame, to a minimum.

Still another object of the invention is to provide a swing frame havinga horizontal supporting bar so constructed and arranged that the bearingor hanger supported thereby will be securely held in position thereonagainst movement which would cause the bearing to become loose and movewhile the swing is in operation.

With the foregoing and other objects in view which will appear as thedescription proceeds, the invention consists of certain novel details ofconstruction and combinations of parts hereinafter more fully describedand pointed out in the claim, it being understood that changes may bemade in the construction and arrangement of parts without departing fromthe spirit of the invention as claimed.

Referring to the drawing Figure 1 is a perspective view illustrating oneend of a swing frame with bearings or hangers constructed in accordancewith the invention, as mounted thereon.

Fig. 2 is a sectional view taken on line 2-2 of Fig. 1.

Fig. 3 is a sectional view taken on line 33 of Fig. 2.

Referring to the drawing in detail, the swing frame embodies leg members5 that converge towards the upper ends thereof, where they are connectedwith the horizontal hanger bar 6. The hanger bar 5 is constructed ofangle bar material and arranged with its open side disposed downwardlyproviding a substantially inverted U-shaped structure.

The bearing forming the essence of the present invention, includes anouter bearing ring 1 formed with depressions for the reception of thebearing balls 8, the outer bearing ring being of a diameter to fitbetween the flanges of the hanger bar 6, as clearly shown by Fig. 2 ofthe drawing.

Secured to the outer surface of the outer bearing ring I, is. a bolt 9which is of a length to extend through an opening formed centrally ofthe hanger bar, there being provided a nut II) on the threaded end ofthe bolt for drawing the bolt and outer bearing ring into closeengagement with the hanger bar, the outer bearing ring being grippedbetween the flanges of the hanger bar, to prevent movement of the outerbearing ring 1 with respect to the hanger bar, when the swing is inmotion.

The combined hanger and bearing, also includes an inner ring II which isprovided with recesses in its outer surfaces, to accommodate the bearingballs 8 so that the ball bearings 8 are held in proper spaced relationwith respect to each other at all times.

The reference character l2 indicates the hanger link which is welded tothe inner ring I i at 13, the side legs of the hanger link I2 beingdisposed on opposite sides of the bearing, the link being of a length topermit the cable indicated by the reference character [4 to be extendedtherethrough and connected with the link.

From the foregoing it will be seen that due to the construction shownand described, I have provided a hanger for the cables of a playgroundswing, wherein the cables will be relieved of wear caused by theswinging of the cables while in use.

It will be obvious that any movement of the cables, will be transferredto the inner ring H, which will roll over the ball bearings 8, reducingwear to a minimum, and providing a swing hanger which will operateeasily.

Having thus described the invention, what is claimed is:

The combination with a horizontal hanger bar of inverted v-shapedconstruction, Said hanger bar having an opening disposed centrallythereof, of a swing hanger comprising a stationary outer bearing ring, abolt secured to the outer stationary bearing ring extended through theopening of the hanger bar, a nut on the bolt securing the outerstationary bearing ring within the inverted V-shaped hanger bar, aninner hearing ring mounted within the outer stationary bearing ring,bearing balls disposed between the outer and inner rings of the bearingmember, a hanger link secured to the inner bearing ring and encircling aportion of both of said rings, and a swing cable secured to the hangerlink whereby swinging movement of the cable rotates said inner bearingring on the ball bearings.

IRVINE C. STROTH.

REFERENCES CITED The following references are of record in the file ofthis patent:

UNITED STATES PATENTS Number Name Date 1,083,780 Villard Jan. 6, 19141,139,464 Dakin May 11, 1915 1,228,490 Slasor June 5, 1917 1,701,683Leas Feb. 12, 1929 1,756,413 Wilke et a1. Apr. 29, 1930 2,474,718 BenderJune 28, 1949

